Restore Peak Performance to Your Vehicle
Is your 1998 Buick Century or other GM vehicle suffering from perplexing issues like a persistent check engine light, rough idling, poor fuel economy, or erratic transmission shifting? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that governs your engine and transmission. A faulty PCM can disrupt your vehicle’s performance, reliability, and drivability. This replacement PCM, part number 16236757, is the definitive solution to restore your vehicle’s original functionality and get you back on the road with confidence.
The PCM is the brain of your vehicle’s operations. It processes data from dozens of sensors to precisely control fuel injection, ignition timing, transmission shift points, and emissions systems. When it begins to fail, the entire system can become unstable. Don’t let a malfunctioning computer dictate your driving experience. Our replacement module is a direct-fit component, meticulously prepared to integrate seamlessly with your vehicle.
Expert Pro Tip
Expert Pro Tip
Before replacing your PCM, always perform a thorough check of the vehicle’s battery, charging system, and all main power and ground connections to the module. A weak battery or a corroded ground wire can mimic PCM failure symptoms by causing voltage drops and communication errors. Verifying these basic elements can save you time and ensure you’re addressing the root cause of the problem.
Why Choose Our Programmed 1998 Buick Century PCM?
What sets this module apart is our professional programming service. Each unit is flashed with the latest official GM software updates specifically for your vehicle. When you place your order, you will provide us with your vehicle’s unique 17-digit Vehicle Identification Number (VIN). Our technicians use this VIN to load the exact calibration file required for your car’s specific engine, transmission, and options. This critical step ensures that the replacement PCM communicates flawlessly with all other modules in your vehicle, eliminating compatibility issues and ensuring a smooth installation process. This is not a generic, one-size-fits-all part; it’s a component prepared specifically for your car.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) illumination.
- ✔ Engine stalling, stumbling, or rough idling.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh, delayed, or erratic automatic transmission shifting.
- ✔ Engine misfires or a feeling of reduced power.
- ✔ The vehicle fails to start, even with a good battery and starter.
- ✔ Inability for a diagnostic scan tool to communicate with the PCM.
- ✔ Unexplained warning lights on the instrument cluster.
Simple Installation Process
Because the module arrives programmed to your VIN, the physical installation is often straightforward for a DIY mechanic or any professional technician. The process typically involves disconnecting the battery, locating the old PCM (often in the engine bay or under the dashboard), unplugging the wiring harnesses, unbolting the unit, and then installing the new one in the reverse order. While many vehicles will operate immediately, some GM models may require a simple, key-on security relearn procedure to sync the new PCM with the vehicle’s anti-theft system. Instructions for this procedure are widely available and do not require special tools.
Guaranteed Fitment and Compatibility
This PCM, identified by service number 16236757, is a direct replacement for a wide range of GM vehicles from the late 1990s. It is also compatible with service numbers 09356741, 9357034, 9357440, and 9366314. Please verify your part number and check the comprehensive fitment list below to ensure this is the correct component for your vehicle.
This part is a confirmed fit for the following vehicles:
- 1998-1999 Oldsmobile Cutlass
- 1998-1999 Pontiac Grand Am (3.1L & 3.4L)
- 1998 Buick LeSabre (3.8L)
- 1998 Buick Park Avenue (3.8L)
- 1998 Chevrolet Venture (3.4L)
- 1999 Oldsmobile Alero (3.4L)
- 1998 Buick Riviera (3.8L)
- 1998 Buick Century (3.1L)
- 1998 Buick Skylark (3.1L)
- 1998 Pontiac Grand Prix
- 1998 Oldsmobile Achieva (3.1L)
- 1998 Oldsmobile Eighty Eight
- 1998 Oldsmobile Silhouette
- 1998 Pontiac Firebird (3.8L)
- 1998 Chevrolet Malibu (3.1L)
- 1998 Oldsmobile Intrigue
- 1998 Chevrolet Lumina Car
- 1998 Pontiac Bonneville
- 1998 Chevrolet Camaro (3.8L)
- 1998 Chevrolet Monte Carlo
- 1998 Buick Regal
- 1998 Pontiac Trans Sport
Frequently Asked Questions
Expert Pro Tip
Before replacing your PCM, always perform a thorough check of the vehicle’s battery, charging system, and all main power and ground connections to the module. A weak battery or a corroded ground wire can mimic PCM failure symptoms by causing voltage drops and communication errors. Verifying these basic elements can save you time and ensure you’re addressing the root cause of the problem.